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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestifm-198</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>ПОВЫШЕНИЕ ВЫХОДНОЙ ЭНЕРГИИ ВКР-ЛАЗЕРА ПУТЕМ ПОВТОРНОГО ИСПОЛЬЗОВАНИЯ ИСТОЩЕННОЙ НАКАЧКИ</article-title><trans-title-group xml:lang="en"><trans-title>INCREASING THE OUTPUT ENERGY OF THE RAMAN LASER BY A REPEATED USE OF A DEPLETED PUMP</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>РУСАК</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>RUSAK</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">bui.anastasiya@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ДАШКЕВИЧ</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>DASHKEVICH</surname><given-names>U. I.</given-names></name></name-alternatives><email xlink:type="simple">v.dashkevich@dragon.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ОРЛОВИЧ</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>ORLOVICH</surname><given-names>V. А.</given-names></name></name-alternatives><email xlink:type="simple">v.orlovich@dragon.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ШКАДАРЕВИЧ</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>SHKADAREVICH</surname><given-names>A. P.</given-names></name></name-alternatives><email xlink:type="simple">shkad@lemt.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики им. Б. И. Степанова Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Унитарное предприятие «НТЦ «ЛЭМТ» БелОМО»</institution></aff><aff xml:lang="en"><institution>Unitary Enterprise “STC “LEMT” of the BelOMO”</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>22</day><month>11</month><year>2016</year></pub-date><volume>0</volume><issue>3</issue><fpage>82</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; РУСАК А.А., ДАШКЕВИЧ В.И., ОРЛОВИЧ В.А., ШКАДАРЕВИЧ А.П., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">РУСАК А.А., ДАШКЕВИЧ В.И., ОРЛОВИЧ В.А., ШКАДАРЕВИЧ А.П.</copyright-holder><copyright-holder xml:lang="en">RUSAK A.A., DASHKEVICH U.I., ORLOVICH V.А., SHKADAREVICH A.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestifm.belnauka.by/jour/article/view/198">https://vestifm.belnauka.by/jour/article/view/198</self-uri><abstract><p>Предложен способ увеличения выходной энергии внерезонаторного ВКР-лазера с двухпроходной накачкой. Способ основан на повторном возврате истощенной накачки в зону ВКР-генерации и демонстрируется на примере безопасных для глаз ВКР-лазеров на кристалле KGW, накачиваемом импульсным многомодовым излучением KGW:Nd-лазера с рабочим переходом 4F3/2 → 4I13/2 в геометриях E Ng, и Е Nm. При возврате в ВКР-лазер 70 % истощенной накачки КПД генерации безопасного для глаз излучения на длинах волн 1507 и 1538 нм возрастает примерно на 11 %.</p></abstract><trans-abstract xml:lang="en"><p>A method for increasing the output energy of an extracavity Raman laser with a double-pass pump is proposed. The method is based on the repeated recovery of a depleted pump in the zone of SRS generation and is demonstrated by the example of eye-safe Raman lasers with a KGW crystal pumped at geometries of E Ng, and Е Nm by pulsed multimode radiation of a Nd:KGW-laser with a 4F3/2 → 4I13/2 working transition. When returning 70 % of a depleted pump in the Raman laser, an efficiency of generation of eye-safe radiation at wavelengths of 1507 and 1538 nm increases by approximately 11 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вынужденное комбинационное рассеяние (ВКР)</kwd><kwd>внерезонаторный ВКР-лазер</kwd><kwd>двухпроходная накачка</kwd><kwd>повторное возвращение истощенной накачки</kwd><kwd>безопасное для глаз излучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stimulated Raman Scattering (SRS)</kwd><kwd>extracavity SRS-laser</kwd><kwd>double-pass pump</kwd><kwd>repeated return of a depleted pump</kwd><kwd>eye-safe radiation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Generation of 1.5-mm radiation through intracavity solid-state Raman shifting in Ba(NO3)2 nonlinear crystals / J. T. Murray [et al.] // Opt. 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